Fix various malformed program crashes.

2012-05-18 10:44:45 -07:00
parent 8d3ac3ac1e
commit 72c41f104e
3 changed files with 24 additions and 2 deletions
--- a/ispc.cpp
+++ b/ispc.cpp
@@ -520,7 +520,10 @@ Target::StructOffset(llvm::Type *type, int element,
    Assert(td != NULL);
    llvm::StructType *structType = 
        llvm::dyn_cast<llvm::StructType>(type);
-    Assert(structType != NULL);
+    if (structType == NULL || structType->isSized() == false) {
+        Assert(m->errorCount > 0);
+        return NULL;
+    }
    const llvm::StructLayout *sl = td->getStructLayout(structType);
    Assert(sl != NULL);